package com.itheima.reggie.controller;

import ch.qos.logback.core.util.TimeUtil;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.itheima.reggie.common.R;
import com.itheima.reggie.entity.User;
import com.itheima.reggie.service.UserService;
import com.itheima.reggie.utils.SMSUtils;
import com.itheima.reggie.utils.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpSession;
import java.util.ArrayList;
import java.util.Map;
import java.util.concurrent.TimeUnit;

/**
 * ClassName: UserController
 * Package: com.itheima.reggie.controller
 * Description:
 *
 * @Author www.youkewang.top
 * @Create 2023-11-03 4:52
 * @Version 1.0
 */

@RestController
@RequestMapping("/user")
@Slf4j

public class UserController {
    @Autowired
    private UserService userService;
    @Autowired
    private RedisTemplate redisTemplate;

    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession session) {
        // 手机号
        String phone = user.getPhone();
        if (StringUtils.isNotEmpty(phone)) {
            // 生成随机的4位验证码
            String code = ValidateCodeUtils.generateValidateCode(6).toString();
            log.info("code: {}", code);
            // 调用阿里云提供的短信服务API完成发送短信
            // SMSUtils.sendMessage("瑞吉外卖", "", phone, code);
            // 需要将生成的验证码保存到Session中
            //session.setAttribute(phone, code);  // key是phone，value是code
            // 将生成的验证码缓存到redis中，并且设置有效期为5分钟
            redisTemplate.opsForValue().set(phone,code,5, TimeUnit.MINUTES);
            return R.success("手机验证码短信发送成功~");
        }
        return R.error("短信发送失败!!!");
    }

    @PostMapping("/login")
    public R<User> login(@RequestBody Map map, HttpSession session) {
        log.info(map.toString());

        // 获取手机号
        String phone = map.get("phone").toString();
        // 获取验证码
        String code = map.get("code").toString();
        // 从session中获取保存的验证码,然后和用户发送过来的验证码做比对，如果比对成功，允许用户登录
        //Object codeInSession = session.getAttribute(phone);
        // 从redis中获取缓存的验证码
        Object codeInSession = redisTemplate.opsForValue().get(phone);
        //codeInSession = "6666";
        log.info("codeInSession Object: {}", codeInSession);
        // 进行验证码的比对（页面提交的验证码和Session中保存的验证码进行比对）
        if (codeInSession != null && codeInSession.equals(code)) {
            // 如果能成功比对，说明登录成功
            LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(User::getPhone, phone);

            User user = userService.getOne(queryWrapper);// 查询单条数据
            if (user == null) {
                // 否则判断当前手机号对应的用户是否为新用户，如果是新用户就自动完成注册
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }
            session.setAttribute("user", user.getId());
            // 如果用户登录成功，删除Redis中缓存的验证码
            redisTemplate.delete(phone);
            return R.success(user);
        }

        return R.error("验证码错误");
    }
}
